Comments on: 11 Advanced Linux ‘Grep’ Commands on Character Classes and Bracket Expressions

By: Alexander

Alexander — Wed, 07 Mar 2018 07:19:07 +0000

Those aren’t 11 commands – it’s just one “command”. And on your Google Plus post, you showed the “command” ^C which isn’t even explained here…

vinay singh — Wed, 10 May 2017 09:56:06 +0000

grep "^[[:punct:]]" tecmint.txt for Search Punctuation Characters is not working then I tried to grep -c "(" it works but didn't solve my problem

Ravi Saive — Wed, 31 Aug 2016 11:47:24 +0000

In reply to Jonix.

@Jonas,

Thanks for pointing out, yes it should be 0-9, A-F and a-f only when using with xdigit.

Jonix — Wed, 31 Aug 2016 11:44:26 +0000

When doing search with xdigit it should be within range 0-9 and A-F and a-f only.